Feeding mechanism for punch presses



May 12, 1931. G. F. MATTESON 1,805,219

' FEEDING MECHANISM FOR PUNCH PRESSES Filed May 2, 1925 4 Sheets-Sheet 14T O/P/VEY y 1931- 3. F. MATTESON 1,805,219

FEEDING MECHANISM FOR PUNCH PRESSES Filed May2, 1925 4 Sheets-Sheet 2 I!I l J l H //7 40 F 7 y 1931- G. F. MATTESON FEEDING MECHANISM FOR PUNCHPRESSES 4 Sheets-Sheet 3 Filed May 2, 1925 r i I I I i i I m n u".

"M 1931. cs. F MATTESON 1,805,219

FEEDING MECHANISM FOR PUNCH PRESSES Fild May 2, 1925 4 Sheets-Shegt 4Patented May 12, 1931 FULLER :BBUSH CQMPANY,:OF HARTFORD, JGONN'ECTIGUI,A CORPORATION OF CON- FEEDING MECHANISM FOR CPUNGH'PEESSES Applicationfiled May 2,

My invention relates to mechanisms for supplying piecesof material andfor moving them to different positions :for various operations thereonby different devices comprised in the structureof a punch press orsimilar machine, ,and an object of my invention, among others, is l theprovisionof means for utilizing the movements of the press to a maximumextent by effecting a number of different operations successively upon aplurality of blanks at each reciprocating movement of the press head,whereby a series of different operations are progresslvely performedupon each blank in its travel to different positions with respect tosaid head. One form of mechanism embodying my ,i nvention, and in theconstruction and use of which the objectsjherein set out, as, well asothers, may be attained, is illustrated in the accompanying drawings, inWhich Figure 1 isa view in front elevation of a portion of the framesupporting my 11mproved feeding mechanism, some of the smaller partsbeing omitted, for clearness tion.

Figure 5 is a viewsimilar to Figuree'but showing the punch plate in itsraised position, Figures 4 and 5 being shown on Sheet 11.

Figure 6 (Sheet IV) is a view in vertical section on aplane denotedby'the dotted line 6-6 of Figure 3.

Figure 7 (Sheet 111) is a view, scale enlarge-d, in vertical sectionpartially on a 1925. Serial No. 2?,573.

plane denoted by the dottediline 6-6 of Figure 3, the punch plate beingshown in its raised position.

FigureSisa View similar tojFigure 7,-but showing the punch plate in ,itslowered position.

In the accompanying drawings the numeral 1O denotes one of the sideparts of a machine embodying my improved blank feeding mechanism, 11 across head connecting the side parts, 12 an operating shaft for thepunch head and 13 ,the punch he ad operatively connected with the shaft12 and-guided by the side parts 10 in a manner that will be readilyunderstood, the shaft 12 being connected with the driving mechanism {ofthe machine as by means of pitmen 9 in a Well known manner.

The strip feeding mechanism comprises means for projecting the end ofastrip that extends, as fronra roll supported on a stand or otherwiseinto position to be acted upon and also to be cut off, theblankcomprising the cut off portion then being further acted .upon by themechanism, this strip feeding mechanism comprising a strip feedslideblock 14 mounted for reciprocating moven ent on a slide arm 15secured to and pro jecting from the side part 10, and as shown in Figure20f the drawing. An anvil 16 on the siide block receives the strip 17that .is extended between said anvil and a gripper 18 in the form of alever pivotally mounted .on the block 14 andhaving a gripping jaw 19 togrip the strip ,in-a manner that will vbe readily under-stood, thegripper being connected by a link 20 with a grip operating lever 21pivotally attached to a supporting arm 22 secured to andextending fromthe side part 10 of the frame, and as shown in Figure 1. The lever 21 isactuated by a cam-23 secured to a shaft 24 through the medium of aconnecting rod 25, said cam shaft forming a part of the drivingmechanism ,of the chine, but the driving connection therefore beingomitted herein not essential to a clear understanding of the invention.

Blank ejecting mechanism comprises a sliding bar 26 mounted forlongitudinal reciprocating movement in a groove 27 in the arm 15, saidbar having an ejecting pusher 28 secured to and projecting from its endthrough an opening 29 in the side part 10 of the frame, this pusherbeing of inverted trough shape to fit upon a forming die to behereinafter described. This bar 26 is operatively connected to the lever21 for operation thereby and as shown in dotted lines in Figure 2 of thedrawing. A strip retaining pawl 30, in the form of a bell crank lever,is pivotally supported on a bracket within the opening 29, one arm ofsaid lever resting in contact with the strip 17 and the other arm ofsaid lever bearing a weight 31 that acts to hold the opposite end of thelever engaged with the strip that is pressed into contact with a springseated detent jaw 38 (the spring not being shown herein) located in asocket in a bracket 32 that is secured to 'the side part 10 and thatsupports the pawl 30, the end of the lever or pawl opposite the grippingend bearing the weight 81. That portion of the side part 10 supportingthe bracket 32 is cut away in Figure 2 of the drawings.

The end of the strip 17 is pushed by the mechanism just described intoan opening formed between a housing 34 and a die block 35 supported on abed 36 of the machine, said housing being secured to the die block inany suitable manner, as by means of screws, and being recessed to forman opening for the reception of the end of the strip, and as shown .inFigure 4 of the drawing. A strip positioner 37 is located in a recess inthe die block 35 and is spring pressed into contact with the end of thestrip 17 as it passes into the housing 34, and as shown in Figures 4 and5 of the drawings. A hole is formed in the housing through which acutting punch 38 secured to a punch plate 39 passes in the operation ofcutting off the end of the strip 17 to form a blank 40, a cutting die 41secured in a recess in the die block 35 acting in co operation with thecutting punch to sever the end of the strip 17, and as shown in Figures4 and 5.

The punch plate 39 is carried by posts 42 secured as by means of screwbolts to said plate, said posts projecting loosely into the die block 35and having stops to limit their upward movement under pressure ofsprings 44 upon which the punch plate 39 is seated it beingunderstood'that said posts are loose for sliding movement only and thatthey are nicely fitted within their sockets to obviate any lateralmovement. The plate 39 is loosely connected with the punch head as bymeans of hooks 45 in a manner common to machines of this class.

A spring pressed blank retainer is located in a recess in the plate 39,its lower end being forced by said spring into contact with the blank 40to retain said blank against the die block 35 when the end of the strip17 is being pushed into the housing to overlie said blank. In thismovement of the end of the strip it first encounters the rounded end ofa guide 47 located at the edge of the hole through which the punch 38passes and as shown in Figure 5 of the drawings, the end of the strip atthis time having passed the end of the blank underneath it, and in itsfurther movement the end of said strip encounters the end of theretainer 46 and pushes it upward sufficiently to permit the end of thestrip to pass.

As hereinbefore explained the housing 34 is provided with a hole for thepassage of the punch 38, this hole 48 being located at some distancefrom openings 49 in the housing for passage of stamping punches 50secured to and projecting from the punch plate 39, there being as manyof these stamping punches as may be desired. for marking, names,trademarks &c., on the end of the strip 17 and that is effected at thesame time the end of the strip is cut off to form the blank 40.

After said blanks have been created they are transferred to formingmechanism that comprises two transfer pushers 51 secured to andprojecting from the ends of transfer slides 52 longitudinally movable intransfer housings 53 secured to projecting portions of the die block 35,and as shown in Figure 3 of the drawings. The slides are connected bylinks 54 with branches 55 of a transfer lever that comprises a shaft 56journaled in hearings in brackets 57 secured to the back of the bed 36,and as shown in Figure 6 of the drawings, said lever further comprisingan actuating arm 58 secured to the shaft 56 and projecting for operationby a transferring cam 59 secured to the cam shaft 24. The transferpushers project through holes in the back of the housing 34, saidhousing being open at its opposite or front side for the passage ofblanks from within the housing by the operation of said pushers.

From the foregoing description it will have been noticed that the blanksunderlie the end of the strip at the time the blanks are renoved fromthe housing in the manner above described, the pushers 51 moving saidblanks from beneath the end of the strip, and from this position saidblanks pass over the tops of spring seated supporting pins 60 andagainst positioning fingers 61 projecting from the ends of spring seatedpositioning and supporting pins 62, said pins being located in recessesin the block 35, and as shown in Figures 7 and 8 of the drawings. W'hensupported by the pins 60 and 62 the blanks underlie a forming die 63secured to the punch plate -39 and that acts incooperation with aforming punch 64 secured toand projecting iroin tlie ulbperisid'e ofthe-diefblockficif A spring'seated' stripper :6o movably mounted in thedie 63 maybe employed if idesired LfOl insuring removal of the blankstromthe die. Afters blank -has been formed by meanso'l' the "die andpunch 63 and 6%, ithe ejecting pusher28, that is ofa shape incrosssection similar-to that 01- a formediblankandthat fits over the endof the punch 6.l,..as;hereinbefore described, pushes the formed blanklengthwise along the forming "punch and oil theend thereof tor delivery.to any desired position. i

ln the operation of the mechanism herein described, a blank 'liavingjustibe'en :i'ormed Onthepunch dkthe punch-head :13 is raised, thuspermitting the punch .plate 139 to be lifted by the springs 4341 @"he.ca1n-231now actuates the lever 21 :to move the gripper 118 and theejectin pusher .28 simultaneously :thereby feedingithe end of the strip:;1.71into the housing Set and ejectingga :formedblank from the punch64. When the end ofthe strip enters :theihousing it passes over 'avcut.ofl' #blank therein, as *hereinbefore described. it about the time:that'the endof thestrip .ireaches Kits innermost .position the-.transferring .pushers 5.1.are operated by thecam 59 rtoieinove the outOK blanktromthe{housing and transfer itito the forming punch 64;, and atabout this same time the gripper 18 is moved 'backwa'rdly, during-Whichmovement the end ofthe strip 17.;isheld byithe retaining .pawl 30. Afterthe 'pushers 51 1 complete their transferring movement they are at'onceretracted and the punch :headis then moved downwardly operating the.punch plate 39 and thereby simultaneously cutting off the send of'thestrip "17 to create the blank :40, stampingithe endpofsaidstrip and alsoi ornn :ing a blank previously deposited Jon the punch :64,.the'ifeeding "of the strip and the transfer of fthe blank taking placebetween each downward movement ofthe punch head and :the threeoperations of cutting off, stamping and forming taking place at eachdoivnwardmovement ofthe punch head. V In accordance with the provisionsof the patent statutes 1 have described the principles of operation ofmyinventiomtogether with the device which '1 now consider represent thebest embodiment thereof; but

I (lesirecto'have it understood that the device shoivn is onlyillustrative andithat the invention maybe carried out-by other means andapplied to uses otherthan'those aboveset out. I claim I :1. A machinecomprising means for moving ablank in one direction to a position foroperation thereon, means for moving said blan k in a transversedirection to another and different position for operation thereon, asingle means I carrying Work performing elements :for penformingsuccessive operations upon said blank :in i said different positions,and Jneans ior further moving the 1 blank in 'Iits'initialdirectionofmove'mentf Amac-hineicomprising means for movingmblankiiione-directionto a position for .operationithereon, means for moving said.blank -:in a different direction :to another and different position foroperation thereon, a reciprocating member for performing successiveoperations uponsaid hlank insaid difi'erent .positionsateachsnccessiverecipro- .catingamovement of saidmember, and .means forfurthermoving the blank :in its initial f directio'nrof movement.

3. A .machine comprising means for mov- :ing ajblank to aipositionoverlying and ;rest- Ting upon anotheriblank, means for moving theothenblank from lund erneath the first blank to another position, andmeans .for sinuiltaneously performing an operation .upon eachotsaidiblanks. i

4. A machine including means for moving ,zublankin onedirectionto astation occupied ,by another :bla-nk, ;means for. moving said 1 otherblank -:i.n a transverse direction :to another position,,anda singlemember carry- :ing Work performing elements for simultaneously:penforming :an operation upon each of said-blanks,andmeansuforaremoving said :blanksiin thezinitial direction of movement.

5. A machine comprising means for mov- .ing a blank in one direction to.a position ovenlying and resting upon another blank, means'formovingtheotheriblankina transverse direction from underneath the first blank-toanotherposition, and means for simultaneously performing an operation:upon each ofsaid blanks. d l

,6. A vmachine comprising means for mov- ;ing aiblanlntoa positionoverlyingand rest- --;1ng uponanother blank, means for imparting.movementtothe ,under :blank simultaneously vith the movement of thefirst mentioned gblank to removeit from underneath the first blank andto'anotherposition, anda single means forsimultaneously performing an op-era-tionuponeachofsaid blanks.

7. A maohine comprising means forfeeding "theend portion of a strip ofmaterial to one station occupied by a blank previously cut .ifrom saidstrip, means for imparting movenent to-said blank simultaneously withthe movement of the strip to another position, and -means for cuttingoff theend of said strip. i V i 8. A machine comprising means forfeedingthe end portionota strip of material in one direction to aposition overlying a blank prcviorisly cut from said strip, means fornext moving said blanflk in a transverse directionifromuncerneath theend of the stripto a d-ifierentposition, and means for next severing theend of said strip to form a blank (ill and, simultaneously therewith,for performing an operation upon each of said blanks.

9. A machine comprising means for feeding the end portion of a strip ofmaterial to one station occupied by a blank previously cut from saidstrip, means for imparting movement to said blank simultaneously withthe movement of the strip to another position, and means forsimultaneously cutting off the end of said strip and for performing anoperation on said blank.

10. A machine comprising means for feeding the end portion of a strip ofmaterial to one:station occupied by a blank previously cut from saidstrip, means for moving said blank to another position, and means forsimultaneously cutting off the end of said strip for performing anoperation on said out off end and for performing an operation on saidblank.

11. A machine comprising means for moving a blank to a station occupiedby a second blank, one of said blanks overlying the other, means formoving said second blank from said station, while the first blankremains and means for performing an operation upon one of said blanks insaid station.

12. A machine affording two stations to receive blanks for operationthereon, comprising means for positioning two blanks at one of saidstations, means for moving one of said blanks separately from one ofsaid stations, and means for simultaneously performing an operation onboth of said blanks when located one at each of said stations.

13. A machine comprising a head having a reciprocating movement, meansfor feeding a relatively long blank longitudinally to a positionunderneath said head and then for feeding another relatively long blanklaterally to a second position underneath said head and after eachreciprocating movement thereof, and means for causing said head toeffect an operation upon a plurality of blanks at each reciprocatingmovement of the head and in said different positions.

14. A' machine comprising a head having a reciprocating movement, meansfor feeding the end of a strip in one direction to a position underneathsaid head and then for feeding a blank previously cut from said strip ina transverse direction to' a second position underneath said head, andbetween succeeding reciprocating movements of said head, and means forcausing said head to effect an operation upon a plurality of blanks andto sever the end portion of said strip at each reciprocating movement ofthe head.

15. A machine affording stations at which operations are performed uponblanks, com prising means for moving blanks from one to another of saidstations, and a single pusher carrying device operable to simultaneousablank from one of said last mentioned sta tions.

16. A machine affording a plurality of stations at which different workis performed, comprising means for simultaneously moving blanks in thesame direction to the first station and from the last station, means formoving blanks in a transverse direction from one to the other of saidstations, and means for performing operations upon said blanks at eachof said stations.

17. A machine affording a plurality of stations at which different workis performed, comprising means for simultaneously moving blanks in thesame direction to the first station and from the last station, means forthen moving a blank from one to another of said stations, and means forthen operating upon a blank at each of said stations.

18. A machine affording a plurality of stations at which different workis performed for receiving blanks, comprising means for moving blanks inone direction from one to another of said stations, and means forsimultaneously feeding the end of a strip of material to one of saidstations, for removing a formed blank from another of said stations, anda reciprocating head having means for simultaneously cutting off the endof said strip, for stamping a blank at one of said stations and forforming a blank into trough shape at another of said stations.

19. A machine affording a plurality of stations at which different workis performed for receiving blanks, comprising means for moving blanks inone direction from one to another of said stations, a movably mountedmember for simultaneously feeding the end of a strip to one of saidstations and for removing a formed blank from another of said stations,and a reciprocating head having means for simultaneously cutting off theend of said strip, for stamping a blank at one of said stations and forforming a blank into trough shape at another of said stations.

20. A machine including means for holding two blanks in work performingpositions, a single blank pushing device for simultaneously moving a newblank into the machine above one of the two blanks and the other of thetwo blanks out of the machne, and an additional blank pushing device formoving the blank underlying the new one into the work performingposition formerly occupied by the other of said first two blanks.

21. A machine including means for holding a blank of elongated formationin a work performing position, means for moving an additional similarblank longitudinally into the machine, and means for guiding theadditional blank into a position above and in contact with the firstmentioned blank.

22. A machine including means for holding a blank of elongated formationin a work 1y feed a blank to the machine and to move performingposition, means for moving an additional similar blank longitudinal intothe machine, means for guiding the additional blankinto a position abovethe first mentioned blank, and means for moving the first mentionedblank transversely out from under the additional blank.

23. A machine including relatively movable members, cutting elementscarried by said members, a housing associated with one said members,means for moving a strip into said housing to have a blank out therefrom, means for guiding the end of the strip into a position above apreviously cut blank, and means for removing said previously cut blankfrom beneath the end of the strip prior to the cutting of a new blank.

24. A machine including relatively movable members, cutting elementscarried by said members, a housing associated with one of said members,means for moving a strip longitudinaly into said housing to have a blankcut therefrom, means for guiding the end of the strip into a positionabove a previously cut blank, and means for removing said previously cutblank transversely from beneath the end of the strip prior to thecutting of a new blank.

25. A machine including relatively movable members, cutting elementscarried by said members, a housing associated with one of said members,means for moving a strip longitudinally into said housing to have ablank cut therefrom, means carried by said members for guiding the endof the strip into a position above a previously out blank, and means forremoving said previously cut blank from beneath the end of the stripprior to the cuttting of a new blank.

26. A machine including relativelymovable members, cutting elementscarried by said members, a housing associated with one of said members,means for moving a strip longitudinally into said housing to have ablank cut therefrom, spring pressed plungers for guiding the end of thestrip into a position above a previously cut blank, and means forremoving said previously cut blank from beneath the end of the stripprior to the cuttin of a new blank.

2 A machine including relatively movablemembers, cutting elementscarried by said members, a housing associated with one of said members,means for moving a strip longitudinally into said housing to have ablank cut therefrom, oppositely acting spring pressed plungers carriedby said members for guiding the end of the strip into a position above apreviously cut blank, and means for removing said previously cut blankfrom beneath the end of the strip prior to the cutting of a new blank.

28. A machine including relatively movable members, cutting elementscarried by said members, a housing associated with one of said members,means for moving a strip GEORGE FRANKLYN MATTESON.

